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Commitments and Contingencies Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Loss Contingencies [Line Items] |  |  |  |  |  |
Income tax expense (benefit) |  |  | $ 16.6 | $ 56.7 | $ 51.2 | $ 24.0
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Income Tax Credits and Adjustments | $ 3.3 | $ 4.3 |  |  |  |
Income tax expense (benefit) |  | $ 1.6 |  |  |  |

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